Add helm deployment and a Makefile for the BackendConfig example/test.

examples/backend-config/Makefile

+# Copyright (c) 2020 UPLEX Nils Goroll Systemoptimierung
+# All rights reserved
+#
+# Author: Geoffrey Simmons <geoffrey.simmons@uplex.de>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# GNU make is required.
+
+mkpath := $(abspath $(lastword $(MAKEFILE_LIST)))
+mkdir := $(dir $(mkpath))
+
+CHARTDIR=$(mkdir)/../../charts
+TESTDIR=$(mkdir)/../../test
+
+all: deploy
+
+deploy-helm:
+	@helm install viking-ingress-backend-cfg $(CHARTDIR)/viking-test-app \
+		--values values.yaml
+
+deploy-kubectl:
+	@kubectl apply -f $(mkdir)/../hello/cafe-ingress.yaml
+	@kubectl apply -f backend-cfg.yaml
+	@kubectl apply -f $(mkdir)/../hello/cafe.yaml
+
+# TESTOPTS are passed to varnishtest, e.g.: make TESTOPTS=-v verify
+verify:
+	$(mkdir)/verify.sh
+
+wait:
+	$(TESTDIR)/wait.sh app=varnish-ingress
+
+uninstall-kubectl:
+	@kubectl delete -f backend-cfg.yaml
+	@kubectl delete -f $(mkdir)/../hello/cafe-ingress.yaml
+	@kubectl delete -f $(mkdir)/../hello/cafe.yaml
+
+uninstall-helm:
+	@helm uninstall viking-ingress-backend-cfg
+
+undeploy-kubectl: uninstall-kubectl wait
+
+undeploy-helm: uninstall-helm wait
+
+ifeq ($(DEPLOY),kubectl)
+deploy: deploy-kubectl
+undeploy: undeploy-kubectl
+else
+deploy: deploy-helm
+undeploy: undeploy-helm
+endif
+
+.PHONY: all $(MAKECMDGOALS)

examples/backend-config/values.yaml

+apps:
+  coffee:
+    image: nginxdemos/hello:plain-text
+    replicas: 2
+    config:
+      # For requests routed to coffee-svc:
+      # - The first byte timeout is three seconds.
+      # - The between bytes timeout is two seconds.
+      first-byte-timeout: 3s
+      between-bytes-timeout: 2s
+      probe:
+        # Health probe for coffee-svc:
+        # - Requests are send as shown in the request array.
+        # - Timeout three seconds.
+        # - Three of four good probes are required for the Endpoint to
+        #   count as healthy.
+        request:
+        - GET /coffee/healthz HTTP/1.1
+        - "Host: cafe.example.com"
+        - "Connection: close"
+        timeout: 3s
+        interval: 3s
+        window: 4
+        threshold: 3
+      director:
+        # Shard requests to Endpoints by URL path.
+        # - 50% of requests are sent to the "next" Endpoint to which they
+        #   would be sharded if the "first" Endpoint were to be removed.
+        # - Requests for newly added Endpoints ramp up over five minutes.
+        type: shard
+        warmup: 50
+        rampup: 5m
+
+  tea:
+    image: nginxdemos/hello:plain-text
+    replicas: 3
+    config:
+      # For requests routed to tea-svc:
+      # - The Host header is set to cafe.example.com if it is missing from
+      #   the request.
+      # - The connect timeout (for opening new connections to an Endpoint)
+      #   is one second.
+      # - The first byte timeout (until the first byte of a backend response
+      #   header is received) is two seconds.
+      # - The between bytes timeout (while a response is being received)
+      #   is one second.
+      # - No more than 200 connections to an Endpoint may be opened.
+      host-header: cafe.example.com
+      connect-timeout: 1s
+      first-byte-timeout: 2s
+      between-bytes-timeout: 1s
+      max-connections: 200
+      probe:
+        # Health probe requests for Endpoints of tea-svc:
+        # - Request URL path is /tea/healthz
+        # - Health probes are good when the response code is 200.
+        # - Five second timeout to receive responses.
+        # - Probes are sent every five seconds.
+        # - Two of three probes must be good for the Endpoint to count as
+        #   healthy.
+        # - At startup, one probe is implicitly assumed to be good.
+        url: /tea/healthz
+        expected-response: 200
+        timeout: 5s
+        interval: 5s
+        initial: 1
+        window: 3
+        threshold: 2
+      director:
+        # Use random load balancing of Endpoints.
+        type: random
+
+ingress:
+  name: cafe-ingress
+  rules:
+  - host: cafe.example.com
+    paths:
+    - path: /tea
+      app: tea
+    - path: /coffee
+      app: coffee